Airsoft Machinegun Milled Hop-Up Chamber from Russian Manufacturer. Airsoft players, who use machinegun as a primary weapon, usually take care of the inner barrel`s coaxiality and hop-up adjustment precision problems, cause it influence directly at the precision and stability of bullet`s flight and it`s very important for machinegunner. Hop-up chamber is responsible for coaxiality of inner barrel and nozzle and for precision of hop-up adjustment. It`s usual, when standart hop-up chamber, made of plastic or silumin influence negative to your efficency as a player, due to high fire rite, which is typical for airsoft machineguns. Milled aluminium hop-up chamber make you forget about such kind of problems and provide fo you such advantage, as high firepower in airsoft combat. The placement of this chamber into your machinegun will assure hard fixation of inner barrel in it and allow to use standard rubbers and cushions. All chamber details are made with usage of high-precision CNC machining. Made in Russia.